Flush tank repair seat



Oct. 21, 1952 s. M. KAss 2,614,263

FLUSH TANK REPAIR SEAT Filed July 28, 1949 a! INVENTOR fiamaebjflfafia,

Patented Oct. 21, 1952 UNITE-D s TATES' mes-r FLUSH .TANK EPAIR-stairSamuel M. Kass, Philarleillhiaifli'ai Application July 28; 1949, SerialNo. 107,252

1 Claim. (ore-57) The present invention relates to a resilient repairseat of rubberlike material for use in a flush tank valve.

A purpose of the invention is to permit the cheap and easy restorationof service in a flush tank valve seat which has become worn and pittedwithout the expense of the replacement of the metallic seat.

A further purpose is to enable a householder to restore service in aflush tank which has failed to function through damage to the valve seatwithout calling upon the services of a plumber.

Further purposes appear in the specification and in the claim.

In the drawings I have chosen to illustrate one only of the numerousembodiments in which my invention may appear, choosing the form shownfrom the standpoints of convenience in illustration, satisfactoryoperation and clear demonstration of the principles involved.

Figure 1 is a fragmentary diagrammatic perspective view of a flush tankvalve and seat to which the invention has been applied.

Figure 2 is a top plan view of the seat of Figure 1.

Figure 3 is an axial section of Figure 2, on the line 3--3.

Figure 4 is a section of Figure 3 on the line 4-4. I

Figure 5 is a perspective of the repair seat of the present invention.

In the drawings like numerals refer to like parts.

Describing in illustration but not in limitation and referring to thedrawings:

After extended use the metallic seat in a flush tank frequently becomessufliciently corroded or worn so that the ball valve does not seattightly. This has frequently necessitated replacement of the seat alongwith the overflow pipe which constitute a single unit. Such replacementnormally requires the services of a plumber.

The present invention is concerned particularly with the temporary orpermanent repair of the seat so that it can continue service whencorroded or worn without replacement.

As shown in the drawings, the flush tank valve assembly consists of aball valve 20, usually of rubber supported on a stem 21 suitably guidedby means not shown, in parallel relation to an overflow pipe 22.

The overflow pipe is mounted on an extension 23 from the side of a valveseat 24 which is integral with a nipple 25 for threaded connection 2pipe with the interior 21 of the nipple to permit drainage.

The seat 24 flares outwardly and the surfaces which are likely to becomecorroded and worn are the interior surfaces 28 which cooperate with thevalve 20.

The repair seat 30 of the present invention is conveniently made of anelastomer such as rubber or synthetic rubber sufliciently soft to beflexible and normally of durometer reading in the range between 30 and80. The repair seat comprises an elongated cylindrical portion 33 havingone or preferably several radial ports 34 which permit overflow from thepipe 26 to enter the interior of the nipple, an outwardly flaring seatportion 32 which engages the ball valve conforming as nearly as possibleon the outside and inside to the contour of the metallic seat, theoutwardly flaring'portion 32 merging with the cylindrical portion 33,and a flat annular rim 3! in which the outwardly flaring portionterminates.

At the lower end the skirt is provided with an outwardly extendingflange 35 which has a diameter greater than the interior diameter of thenipple. Therefore when the repair seat is forced into place the flange35 and the skirt are contracted and grip the interior of the metallicnipple. The skirt itself when contracted will clear from the nipple asshown at 36.

In operation it will be seen that it is merely necessary to lift theball valve and reach down with the hand under the ball valve insertingthe elastomer repair seat in the metallic valve seat, and then forcingit down against the resistance due to the contraction of the flange 35and the skirt.

The holes 34 are amply larger than the passage 26 and there issuflicient freedom in the space 38 so that it normally is not necessaryto align the holes carefully with the passage 26.

In view of my invention and disclosure, variations and modifications tomeet individual whim or particular need will doubtless become evident toothers skilled in the art, to obtain all or part of the benefits of myinvention without copying the structure shown, and I, therefore, claimall such insofar asthey fall Within the reasonable spirit and scope ofmy claim.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

A flush tank valve seat repair fitting adapted to cooperate with a flushtank valve seat havin a flaring seat portion and. a depending nippleportion and having an overflow pipe connected at one side beneath theflaring seat portion, said repair fitting being of rubber-like materialcomprising a lower radially apertured cylindrical wall, the aperturebeing adapted to provide drainage from an overflow pipe adjacent to thevalve seat with which the repair fitting is intended to be used, anexternal gripping flange at one end of the cylindrical wall having anexternal diameter substantially larger than the internal diameter of thenipple portion of the said valve seat and larger than the externaldiameter of the cylindrical wall and therefore adapted to grip the innerwall of said nipple portion resiliently, an outwardly flaring valve seatportion merging with the cylindrical wall at the other end fromREFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENT Number Name Date 1,624,234 Hale Apr. 12, 19271,867,262 Howle- July 12, 1932 2,001,830 Weir May 21, 1935

